KL Rahul of India scored 91 against West Indies at Mumbai on 11.12.19 to provide the 28th occasion of an opening batsman scoring a ninety in the history of T20Is. All such occasions are tabulated below

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	DR Martyn	96	1	Aus	RSA	Brisbane	09 Jan 2006
2	HH Gibbs	90*	2	RSA	Win	Johannesburg	11 Sep 2007
3	TM Dilshan	96*	1	Srl	Win	The Oval	19 Jun 2009
4	LE Bosman	94	1	RSA	Eng	Centurion	15 Nov 2009
5	M Jayawardene	98*	1	Srk	Win	Bridgetown	07 May 2010
6	CH Gayle	98	1	Win	Ind	Bridgetown	09 May 2010
7	MJ Guptill	91*	2	NZl	Zim	Auckland	11 Feb 2012
8	AD Hales	99	2	Eng	Win	Nottingham	24 Jun 2012
9	DA Warner	90*	1	Aus	Srl	Sydney	26 Jan 2013
10	Ahmed Shehzad	98*	1	Pak	Zim	Harare	24 Aug 2013
11	AD Hales	94	1	Eng	Aus	Ch-le-St	31 Aug 2013
12	CH Gayle	90	2	Win	RSA	Johannesburg	11 Jan 2015
13	H Masakadza	93*	1	Zim	Ban	Khulna	22 Jan 2016
14	HM Amla	97*	1	RSA	Aus	Cape Town	09 Mar 2016
15	Najeeb Tarakai	90	1	Afg	Ire	Greater Noida	10 Mar 2017
16	E Lewis	91	2	Win	Pak	Port of Spain	01 Apr 2017
17	S Dhawan	90	1	Ind	Srl	Colombo (RPS)	06 Mar 2018
18	Babar Azam	97*	1	Pak	Win	Karachi	02 Apr 2018
19	RG Sharma	97	1	Ind	Ire	Dublin-M	27 Jun 2018
20	SF Mire	94	1	Zim	Pak	Harare	04 Jul 2018
21	Fakhar Zaman	91	2	Pak	Aus	Harare	08 Jul 2018
22	S Dhawan	92	2	Ind	Win	Chennai	11 Nov 2018
23	Babar Azam	90	2	Pak	RSA	Johannesburg	03 Feb 2019
24	PR Stirling	91	2	Ire	Afg	Dehradun	23 Feb 2019
25	SJ Baard	92	1	Nam	Bots	Windhoek	22 Aug 2019
26	PJ Moor	92*	2	Zim	Sin	Singapore	03 Oct 2019
27	S Davizi	91	1	CZK-R	Mal	Marsa	18 Oct 2019
28	KL Rahul	91	1	Ind	Win	Mumbai	11 Dec 2019

It also provides the fourth occasion of an Indian opening batsman scoring a ninety in a T20I. All such occasions are tabulated below

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	S Dhawan	90	1	Ind	Srl	Colombo (RPS)	06 Mar 2018
2	RG Sharma	97	1	Ind	Ire	Dublin-M	27 Jun 2018
3	S Dhawan	92	2	Ind	Win	Chennai	11 Nov 2018
4	KL Rahul	91	1	Ind	Win	Mumbai	11 Dec 2019

It also provides the seventh occasion of an opening batsman scoring a ninety in a T20I against West Indies. All such occasions are tabulated below

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	HH Gibbs	90*	2	RSA	Win	Johannesburg	11 Sep 2007
2	TM Dilshan	96*	1	Srl	Win	The Oval	19 Jun 2009
3	M Jayawardene	98*	1	Srk	Win	Bridgetown	07 May 2010
4	AD Hales	99	2	Eng	Win	Nottingham	24 Jun 2012
5	Babar Azam	97*	1	Pak	Win	Karachi	02 Apr 2018
6	S Dhawan	92	2	Ind	Win	Chennai	11 Nov 2018
7	KL Rahul	91	1	Ind	Win	Mumbai	11 Dec 2019

It also provides the second occasion of an Indian opening batsman scoring a ninety in a T20I against West Indies. All such occasions are tabulated below

No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	S Dhawan	92	2	Ind	Win	Chennai	11 Nov 2018
2	KL Rahul	91	1	Ind	Win	Mumbai	11 Dec 2019

AD Hales, Babar Azam, CH Gayle and S Dhawan are the four opening batsmen who have scored nineties on two occasions. All such occasions are tabulated below

No	No	Player	Runs	Inns	Team	Oppn	Ground	Start Date
1	1	AD Hales	99	2	Eng	Win	Nottingham	24 Jun 2012
	2	AD Hales	94	1	Eng	Aus	Ch-le-St	31 Aug 2013
2	1	Babar Azam	97*	1	Pak	Win	Karachi	02 Apr 2018
	2	Babar Azam	90	2	Pak	RSA	Johannesburg	03 Feb 2019
3	1	CH Gayle	98	1	Win	Ind	Bridgetown	09 May 2010
	2	CH Gayle	90	2	Win	RSA	Johannesburg	11 Jan 2015
4	1	S Dhawan	90	1	Ind	Srl	Colombo (RPS)	06 Mar 2018
	2	S Dhawan	92	2	Ind	Win	Chennai	11 Nov 2018